Results 91 to 100 of about 79,537 (266)
Química Nova, 2004 In an ethanolic extract of leaves of Ottonia corcovadensis (Piperaceae) were identified sixteen terpenoids of essential oil and the three flavonoids 3',4',5,5',7-pentamethoxyflavone (1), 3',4',5,7-tetramethoxyflavone (2) and 5-hydroxy-3',4',5',7 ...
Valdir A. Facundo +2 more
doaj +1 more source
, 2007 Weakly nucleophilic amines were converted into the corresponding lithium amides and used in either one- or two-pot palladium mediated-reactions with [11C]carbon monoxide and aryl iodides.
Elisabeth Blom +7 more
core +1 more source
High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions
Advanced Functional Materials, EarlyView.Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani +8 more
wiley +1 more source
Química Nova, 1999 By using DSC data, the enthaplies of sublimation for ethyleneurea and propyleneurea, are calculated as 84 and 89 kJ mol-1 respectively. Using the vaporization enthalpy values for dimethylethyleneurea and dimethylprophyleneurea, as obtained from ...
Robson Fernandes de Farias
doaj +1 more source
Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source
Weinreb Amides as Directing Groups for Transition Metal-Catalyzed C-H Functionalizations
Molecules, 2019 Weinreb amides are a privileged, multi-functional group with well-established utility in classical synthesis. Recently, several studies have demonstrated the use of Weinreb amides as interesting substrates in transition metal-catalyzed C-H ...
Jagadeesh Kalepu, Lukasz T. Pilarski
doaj +1 more source
, 2008 An efficient copper-catalyzed multicomponent reaction of phenols, amides, and 4-bromphenyl iodide was developed that uses commercially available N,N-dimethylglycine as the ligand.
Fang, DM +5 more
core
Advanced Functional Materials, EarlyView.A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai +6 more
wiley +1 more source
Ortho Arylation of N-Aryl Amides and the Construction of Diagonal Tetraaryldiamines and N-Doped Picenes via BBr3-Derived Dibromoboracycles [PDF]
The synthesis of biaryl amides, which are prevalent motifs in bioactive molecules, often necessitates lengthy and inef-ficient procedures. To address these limitations, catalytic C-H activation protocols have emerged, enabling the direct ortho-arylation ...
Ganesh , Shinde +2 more
core +1 more source